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Finding the Fourth Proportional to 77,998.49, 117,021.21 and 32,996.67

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Solution

The fourth proportional to 77,998.49, 117,021.21 and 32,996.67 is: 49,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998.49 : 117,021.21 = 32,996.67 : x
  2. Step 2: Convert to fraction form
    77,998.49/117,021.21 = 32,996.67/x
  3. Step 3: Cross multiply
    77,998.49x = 117,021.21 × 32,996.67
  4. Step 4: Simplify right side
    77,998.49x = 3,861,309,686.80
  5. Step 5: Solve for x
    x = 3,861,309,686.80/77,998.49
  6. Step 6: Final answer
    x = 49,504.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.